﻿/*
 * Copyright (c) 2015, Paul Gaunard (www.codeability.net)
 * All rights reserved.

 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
 * - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the 
 *  documentation and/or other materials provided with the distribution.

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */


using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Navigation;
using System.Windows.Threading;

using Microsoft.Phone.Controls;
using Microsoft.Phone.Shell;

using CodeAbility.MonitorAndCommand.WindowsPhoneController.ViewModels;

namespace CodeAbility.MonitorAndCommand.WindowsPhoneController.Pages
{
    public partial class MCP4921 : PhoneApplicationPage
    {
        public const int TIMESPAN_IN_MILLISECONDS = 333; 

        MCP4921ViewModel ViewModel { get; set; }

        DispatcherTimer dispatcherTimer;

        public MCP4921()
        {
            InitializeComponent();

            ViewModel = new MCP4921ViewModel();
            DataContext = ViewModel;

            dispatcherTimer = new System.Windows.Threading.DispatcherTimer();
            dispatcherTimer.Tick += new EventHandler(dispatcherTimer_Tick);
            dispatcherTimer.Interval = new TimeSpan(0, 0, 0, 0, TIMESPAN_IN_MILLISECONDS);
        }

        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
            base.OnNavigatedTo(e);

            ViewModel.Subscribe();

            dispatcherTimer.Start(); 
        }

        protected override void OnNavigatingFrom(NavigatingCancelEventArgs e)
        {
            base.OnNavigatingFrom(e);

            ViewModel.Unsubscribe();

            dispatcherTimer.Stop(); 
        }

        double holdedSliderValue = 0;

        private void dispatcherTimer_Tick(object sender, EventArgs e)
        {
            double currentSliderValue = Slider.Value;
            if (currentSliderValue != holdedSliderValue)
            {
                holdedSliderValue = currentSliderValue;

                if (ViewModel.Connected) 
                    ViewModel.SendControlValue(holdedSliderValue); 
            }
        }
    }
}